A novel generic graph model for traffic grooming in heterogeneous WDM mesh networks
IEEE/ACM Transactions on Networking (TON)
Traffic Grooming for Optical Networks: Foundations, Techniques and Frontiers
Traffic Grooming for Optical Networks: Foundations, Techniques and Frontiers
Survivable impairment-aware traffic grooming in WDM rings
Proceedings of the 23rd International Teletraffic Congress
Energy efficient Traffic-Aware design of on-off Multi-Layer translucent optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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In this paper, we address the problem of traffic grooming and regenerator placement in a WDM optical network in which lightpaths are hop-constrained by physical impairments. The efficient placement of regenerators and electronic grooming equipment at ROADM nodes for a given network topology is required such that all traffic demands can be supported with minimum cost. We present a detailed ROADM node architecture together with an associated cost model, and we propose an auxiliary-graph-based heuristic for jointly placing regenerators and electronic grooming equipment in the network. The numerical results show that combining the grooming problem with the placement of regenerators reduces the network cost significantly compared to the cases in which traffic grooming and regenerator placement are handled separately.